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Why should C++ programmers minimize use of 'new'?
...on Memory leak with std::string when using std::list<std::string> , and one of the comments says this:
18 Answers
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How to return smart pointers (shared_ptr), by reference or by value?
...al C++ compilers implement RVO even when all optimizations are turned off. And with C++11's move semantics, this concern is even less relevant. (But the only way to be sure is to profile and experiment.)
If you're still not convinced, Dave Abrahams has an article that makes an argument for returnin...
Rails find_or_create_by more than one attribute?
There is a handy dynamic attribute in active-record called find_or_create_by:
5 Answers
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Cannot get to $rootScope
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@vojta But what if I need to pass parameter from outside and use it in config ? say root path within asp.net app ? I just don't want to use global variables and wanted to use ng-init='root:<%= myroot %>' and use root value into module.config.
– vittore
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What does “all” stand for in a makefile?
...rning Makefiles but for me it is still unclear for what the target "all" stands for and what it does.
4 Answers
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What's best SQL datatype for storing JSON string?
...ainly NOT:
TEXT, NTEXT: those types are deprecated as of SQL Server 2005 and should not be used for new development. Use VARCHAR(MAX) or NVARCHAR(MAX) instead
IMAGE, VARBINARY(MAX) : IMAGE is deprecated just like TEXT/NTEXT, and there's really no point in storing a text string into a binary column...
How do .gitignore exclusion rules actually work?
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@meowsqueak You could possibly ignore /a/b/c and then write a hook to git add --force any matching file pre-commit or something
– Chris
Jun 8 '10 at 23:42
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Maven parent pom vs modules pom
...e seem to be several ways to structure parent poms in a multiproject build and I wondering if anyone had any thoughts on what the advantages / drawbacks are in each way.
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add maven repository to build.gradle
I added a custom maven repository to build.gradle in Android Studio but the dependency is not being found
5 Answers
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MySQL Multiple Joins in one query?
...want to do a LEFT OUTER JOIN which will return all your dashboard messages and an image_filename only if one exists (otherwise you'll get a null)
SELECT dashboard_data.headline, dashboard_data.message, dashboard_messages.image_id, images.filename
FROM dashboard_data
INNER JOIN dashboard_messag...